My prediction is that within 6 years we will see either simply turbos added to the current NASCAR premiere series or a 4 cylinder boosted series (lots more women racers).
Within 5 years they will have rain tires and racing.
Also within 3 years we will see the stock cars on dirt.
Within 5 years they will have rain tires and racing.
Also within 3 years we will see the stock cars on dirt.